US5710394A - Television set speaker system - Google Patents

Television set speaker system Download PDF

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Publication number
US5710394A
US5710394A US08/572,668 US57266895A US5710394A US 5710394 A US5710394 A US 5710394A US 57266895 A US57266895 A US 57266895A US 5710394 A US5710394 A US 5710394A
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US
United States
Prior art keywords
television set
cabinet
diaphragm
sound
speaker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/572,668
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English (en)
Inventor
Hitoshi Saito
Hitoshi Sango, deceased
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
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Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to US08/572,668 priority Critical patent/US5710394A/en
Assigned to KABUSHIKI KAISHA TOSHIBA reassignment KABUSHIKI KAISHA TOSHIBA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SANGO, MICHIKO, HEIR OF HITOSHI SANGO (DECEASED), SAITO, HITOSHI
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Publication of US5710394A publication Critical patent/US5710394A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
    • H04N5/642—Disposition of sound reproducers

Definitions

  • This invention relates to television set speaker systems and more particularly to a television set speaker system intended to expand an audio reproducing frequency band and to reproduce a stereo audio sound accurately.
  • a speaker arranging place is mostly occupied by a cathode ray tube setting place and therefore the speaker is arranged on both sides or the upper or lower part of the cathode ray tube.
  • acoustic waveguides also called speaker horns
  • acoustic waveguides arranged on the front surface of a speaker so as to guide sound waves being emitted from the speaker diaphragm to a sound radiating mouth have been employed as a means of slimming the television set.
  • FIGS. 5 and 6 A conventional television set speaker system is shown in FIGS. 5 and 6.
  • the reference numeral 10 represents a television set.
  • left and right channel speakers 13 and 14 are arranged respectively in the left and right positions on both sides of a cathode ray tube 12.
  • Acoustic waveguides 15 and 16 are fitted respectively to the front surface parts of the left and right channel speakers 13 and 14 and the sound radiating mouths 17 and 18 respectively of the left and right acoustic waveguides 15 and 16 are arranged near the front panel (front surface frame) of the television cabinet 11.
  • each sound radiation mouth 17 and 18 is so much smaller than the diaphragm area of each speaker 13 and 14 that, when the sound pressure levels radiated from the sound radiating mouths 17 and 18 have been reduced, the sound pressure level radiated from the speaker rear surface part will be larger, and the sound radiated around from the ventilating holes 19 and 20 will mask the sound on the front side from the mouths 17 and 18.
  • the sound quality therefore will become unclear and the left and right stereo separation will deteriorate.
  • Such defects exist in the illustrated convention arrangement.
  • back cabinets (sealed boxes) 21 and 22 typically are arranged in the rear of the left and right channel speakers 13 and 14 respectively with the acoustic waveguides 15 and 16 arranged in the front surface parts.
  • the back cabinets 21 and 22 are formed in the limited space of the television set cabinet 11, the back cabinets 21 and 22 cannot be formed with a large volume. Therefore, the low frequency reproducing range will be limited disadvantageously by the volume limitation of the back cabinets 21 and 22.
  • the sound emitted from the rear surface parts of the speakers 13 and 14 will be enclosed by the back cabinets 21 and 22 and thus cannot be radiated out. The sound radiated out will be only from the sound radiating mouths 17 and 18 and the reproduced sound pressure level will be low.
  • An object of the present invention is to provide a television set speaker system wherein the sound radiated from the front and rear surfaces of the speaker will not interfere with each other and a sound quality high in clearness is obtained.
  • Another object of the present invention is to provide a television set speaker system wherein the sound reproducing range is wide and sounds high in presence feeling can be reproduced.
  • a directional reflector reflecting the sound radiated from the rear surface part of the speaker diaphragm in a specific direction different from the front of the television set.
  • a directional reflector reflecting the sounds radiated from the rear surface part of the speaker diaphragm in a specific direction different from the front of the television set
  • a radiating port radiating out of the television set the sounds reflected in the specific direction by this directional reflector.
  • the directional reflector is arranged in the rear surface part of the speaker diaphragm so as to forcibly reflect in the specific direction (for example, the side surface part direction) of the television set the sounds radiated from the rear surface diaphragm and to discharge the sounds out of the television set.
  • the sounds on the front and rear surfaces of the speaker diaphragm will not interfere with each other and will be able to be positively radiated in front of the television set and in the specific direction different from the front.
  • a first acoustic waveguide guiding sound to the front of the television set and radiating the sound which, in turn, is radiated from the front surface part of the diaphragm of the first speaker;
  • a second acoustic waveguide guiding sound to the front of the television set and radiating the sound which, in turn, is radiated from the front surface part of the diaphragm of the second speaker;
  • a first directional reflector reflecting the sound radiated from the rear surface part of the speaker diaphragm of the first speaker in a specific direction different from the front of the television set;
  • a second directional reflector reflecting the sound radiated from the rear surface part of the speaker diaphragm of the second speaker in a specific direction different from the front of the television set.
  • a first acoustic waveguide guiding sound to the front of the television set and radiating the sound which, in turn, is radiated from the front surface part of the diaphragm of the first speaker;
  • a second acoustic waveguide guiding sound to the front of the television set and radiating the sound which, in turn, is radiated from the front surface part of the diaphragm of the second speaker;
  • a first directional reflector reflecting the sound radiated from the rear surface part of the speaker diaphragm of the first speaker in a specific direction different from the front of the television set;
  • a second directional reflector reflecting the sound radiated from the rear surface part of the speaker diaphragm of the second speaker in a specific direction different from the front of the television set;
  • a second radiating port radiating out of the television set the sound reflected in the specific direction by the second directional reflector.
  • the first and second directional reflectors are provided respectively in the rear surface parts of the first and second speakers so as to forcibly reflect in the specific direction (for example, the side surface part direction) and discharge out of the television set the sound from the rear surface parts of the first and second speakers. Therefore, the sound on the front surface and rear surface of each speaker diaphragm will not interfere with each other, and the left and right waves emitted from of the respective rear surface diaphragms of the first and second speakers will interfere only slightly with each other.
  • the sounds on the speaker rear surface part reflected, for example, in the side surface part direction by the directional reflector and discharged out of the television set will reach the audience by reflecting against the peripheral wall. As a result, a sound quality high in clearness and presence feeling will be obtained.
  • FIG. 1 is a perspective view showing a television set speaker system embodying the present invention.
  • FIG. 2 is a perspective view showing a formation modeling the system in FIG. 1.
  • FIG. 3 is a perspective view showing one speaker system as disassembled.
  • FIG. 4 is a vertically sectioned view of FIG. 3 as assembled.
  • FIG. 5 is a perspective view showing a conventional television set speaker system.
  • FIG. 6 is a perspective view showing a television set speaker system of another conventional example.
  • FIG. 1 is a perspective view showing a television set speaker system embodying the present invention.
  • FIG. 2 is a perspective view showing the arrangement of the left and right channel speakers within the television set cabinet in FIG. 1.
  • the same components as in the conventional example in FIG. 5 shall bear the same reference numerals in the description.
  • a television set 10A is provided with a cathode ray tube 12 and left and right channel speakers 13 and 14 within a television set cabinet 11.
  • the left and right channel speakers 13 and 14 are arranged respectively in the left and right positions on both sides of the cathode ray tube 12.
  • Acoustic waveguides 15 and 16 are arranged respectively in the front surface parts of the left and right channel speakers 13 and 14.
  • Sound radiating mouths 17 and 18 respectively at the tips of the acoustic waveguides 15 and 16 are arranged near the front panel of the television cabinet 11. The sounds radiated from the front surface parts of the respective diaphragms of the speakers 13 and 14 are to be radiated to the front surface of the television set cabinet 11 through the acoustic waveguides 15 and 16.
  • Directional reflectors 23 and 24 are arranged respectively in the rear surface parts of the left and right channel speakers 13 and 14. These respective left and right directional reflectors 23 and 24 will reflect, using reflecting plates, the sound radiated from the rear surface parts of the respective diaphragms of the speakers 13 and 14.
  • the reflecting plates are open on one side surface and upper surface (of a substantially bent cross-sectioned plane) and will discharge the sound in a specific direction (diagonally forward on the side surface part and diagonally forward on the top surface part of the cabinet in the drawing) different from that of sound emanating from the mouths at the front of the television set cabinet.
  • the sound waves reflected by the respective left and right directional reflectors 23 and 24 are discharged out of the cabinet through the radiating ports 30 and 31 formed respectively in the left and right side surface parts of the cabinet 11.
  • the radiating ports 30 and 31 may also serve as ventilating holes.
  • the sound radiated from the diaphragm front surface parts of the left and right channel speakers 13 and 14 is radiated forward of the television set 10 from the left and right sound radiating months 17 and 18 respectively through the left and right acoustic waveguides 15 and 16.
  • the sound radiated from the diaphragm rear surface parts of the left and right channel speakers 13 and 14 will be respectively reflected by the respective reflecting surfaces of the left and right directional reflectors 23 and 24, will be discharged diagonally forward from the side surface part and diagonally forward from the top surface part of the television set cabinet 11 and will be forcibly radiated out of the cabinet through the radiating ports 30 and 31 located in the left and right side surface parts of the television set cabinet 11.
  • the sound radiated from the respective diaphragm rear parts will be reflected by the reflecting surfaces of the respective directional reflectors 23 and 24 and will be discharged diagonally forward and diagonally upward.
  • part of the sound radiated from the diaphragm rear surface parts of the speakers 13 and 14 will be reflected by the top surface part inside surface of the cabinet 11 and will be radiated out of the cabinet through the radiating ports 30 and 31. Therefore, as shown in the model of FIG. 2, the left and right sound waves A and B emitted by the respective diaphragm rear surfaces of the left and right channel speakers 13 and 14 will be of definite direction.
  • the left and right sound waves of the respective speaker rear surfaces will interfere only slightly with each other, the distinction between the left and right sound that is, clearness will be improved, and the stereo feeling will increase. Also, when the sound radiated from the side surface is reflected against the wall surface of the room, the expanding feeling of the sounds in the left and right directions will increase.
  • FIG. 3 is a perspective view showing one speaker system (for example, the right channel speaker system) in FIG. 1 as disassembled.
  • FIG. 4 is a vertically sectioned view of FIG. 3 as assembled.
  • the acoustic waveguide 16 is fitted to the front surface part of the speaker 14 and the directional reflector 24 is fitted to the rear surface part of the speaker 14.
  • the acoustic waveguide 16 is formed of a horn part 16a provided with a sound radiating mouth 18 on the tip side to radiate sound waves, a waveguide part 16b guiding sound waves to the horn side from the speaker front surface as connected to this horn part 16a and a fitting part 16c connected to the rear end of this waveguide part 16b.
  • the front surface frame part of the speaker 14 is fixed to the fitting part 16c by such locking means as screws.
  • Connecting parts 16c1 and 16c2 are provided as outward projections at the rear end of the fitting frame of the fitting part 16c.
  • the connecting parts 24c1 and 24c2 of the directional reflector 24 are to be connected and fixed to the connecting parts 16c1 and 16c2 of this fitting part 16 by means of screws 26 and 27.
  • the connecting parts 24c1 and 24c2 are flange-shaped on the outer periphery of the directional reflector 24.
  • the directional reflector 24 is formed of a reflecting plane part 24a wherein a reflecting surface is directed diagonally forward (with respect to the front surface of the television set) and diagonally upward to reflect the sound radiated from the rear surface part of the speaker 14, a side surface shielding part 24b connected to this reflecting plane part 24a so as to shield sound waves propagating toward the center of the television set (that is, toward the cathode ray tube) and a bottom surface shielding part 24c connected to the reflecting plane part 24a so as to shield sound waves propagating toward the bottom surface of the television set.
  • the acoustic waveguide 16 When the directional reflector 24 is secured to the fitting part 16c of the acoustic waveguide 16 by screws 26 and 27, as shown in the vertically sectioned view in FIG. 4, the acoustic waveguide 16 will be arranged in front of the front diaphragm 14a of the speaker 14 and the directional reflector 24 will be arranged in the rear of the rear diaphragm 14b of the speaker 14.
  • the reference numeral 25 represents a sound absorbing material to prevent resonance with a specific frequency. A cotton-like member is used for the sound absorbing material 25.
  • the formation of the directional reflector 24 of the right channel speaker is shown in FIGS. 3 and 4.
  • the directional reflector 23 of the left channel speaker has a shape symmetrical with the directional reflector 24 but is of the same formation as of the directional reflector 24.
  • a television speaker system which is high in clearness and which gives a presence feeling and expansion feeling can be realized without a significant increase in cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
US08/572,668 1994-08-30 1995-12-14 Television set speaker system Expired - Fee Related US5710394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/572,668 US5710394A (en) 1994-08-30 1995-12-14 Television set speaker system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP6-205628 1994-08-30
JP20562894A JP3449571B2 (ja) 1994-08-30 1994-08-30 テレビジョンセットのスピーカシステム
US52051795A 1995-08-29 1995-08-29
US08/572,668 US5710394A (en) 1994-08-30 1995-12-14 Television set speaker system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US52051795A Continuation 1994-08-30 1995-08-29

Publications (1)

Publication Number Publication Date
US5710394A true US5710394A (en) 1998-01-20

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US08/572,668 Expired - Fee Related US5710394A (en) 1994-08-30 1995-12-14 Television set speaker system

Country Status (8)

Country Link
US (1) US5710394A (zh)
EP (1) EP0700210B1 (zh)
JP (1) JP3449571B2 (zh)
KR (1) KR100231094B1 (zh)
CN (1) CN1054254C (zh)
DE (2) DE69514055T2 (zh)
HK (1) HK1014231A1 (zh)
TW (1) TW428870U (zh)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6035051A (en) * 1997-05-12 2000-03-07 Sony Corporation Sound apparatus
EP1041538A1 (en) * 1999-03-30 2000-10-04 THOMSON multimedia Mechanical filter for acoustic systems and television set equipped with sunch filters
US20030127280A1 (en) * 2000-07-31 2003-07-10 Mark Engebretson System for integrating mid-range and high-frequency acoustic sources in multi-way loudspeakers
US20100032232A1 (en) * 2008-08-11 2010-02-11 Samsung Electronics Co., Ltd. Speaker device and display apparatus having the same
GB2476477A (en) * 2009-12-22 2011-06-29 Malcolm Hyde Loudspeaker uses movable panels to re-direct rearward sound waves
WO2011153998A1 (en) * 2010-06-07 2011-12-15 Libratone Aps Compact stereo loudspeaker for wall mounting
US20120133894A1 (en) * 2010-11-30 2012-05-31 Sanyo Electric Co., Ltd. Projection display apparatus
US9516257B2 (en) 2013-12-30 2016-12-06 Boe Technology Group Co., Ltd. Display device housing and display device
US20180310095A1 (en) * 2017-04-19 2018-10-25 Chill Gaming Pty Ltd Audio system
US20200021908A1 (en) * 2018-07-10 2020-01-16 Samsung Electronics Co., Ltd. Sound output apparatus
US10789811B2 (en) 2016-03-08 2020-09-29 Chill Gaming Pty Ltd Computing system providing a user-directed, avatar-based skill activity

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5822443A (en) * 1996-04-22 1998-10-13 Samsung Electronics Co., Ltd. Speaker system for a television
US6324052B1 (en) 1996-09-03 2001-11-27 New Transducers Limited Personal computing devices comprising a resonant panel loudspeaker
GB9705981D0 (en) * 1997-03-22 1997-05-07 New Transducers Ltd Personal computers
KR100965861B1 (ko) 2002-10-24 2010-06-24 삼성전자주식회사 이동통신 시스템에서 복합 재전송 제어 장치
JP2007282051A (ja) * 2006-04-10 2007-10-25 Sharp Corp スピーカ及びスピーカ装置
JP5113471B2 (ja) 2007-10-02 2013-01-09 Ｓ′Ｎｅｘｔ株式会社 スピーカシステム
JP5112358B2 (ja) * 2009-02-13 2013-01-09 株式会社東芝 スピーカシステムおよびテレビ
JP2011077637A (ja) * 2009-09-29 2011-04-14 Sanyo Electric Co Ltd 画像表示装置
EP2637417A1 (de) * 2012-03-07 2013-09-11 RE-Speakers Gehäuse für Dipollautsprecher, Verfahren zur dessen Herstellung und Dipollautsprecher
CN104113797A (zh) * 2014-06-26 2014-10-22 小米科技有限责任公司 音频组件及电子设备
KR102593275B1 (ko) * 2018-11-15 2023-10-25 삼성전자주식회사 디스플레이장치
JP2022026838A (ja) * 2020-07-31 2022-02-10 株式会社Ｊｖｃケンウッド 音声再生装置及びスピーカ装置
TWI783276B (zh) * 2020-10-14 2022-11-11 緯創資通股份有限公司 導音模組及其相關喇叭組合與電子裝置
WO2022134169A1 (zh) * 2020-12-21 2022-06-30 安徽鸿程光电有限公司 一种多显示屏系统及其音频控制方法

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DE3700539A1 (de) * 1987-01-10 1988-07-28 Joachim Weckler Elektroakustischer apparat zur wiedergabe tiefster und mittlerer frequenzen
JPH01135295A (ja) * 1987-11-20 1989-05-26 Matsushita Electric Ind Co Ltd スピーカシステム
US4926487A (en) * 1988-03-16 1990-05-15 Sanyo Electric Co., Ltd. Speaker system
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JPH0394598A (ja) * 1989-09-06 1991-04-19 Matsushita Electric Ind Co Ltd スピーカ装置、それを利用したテレビセット
EP0462571A1 (en) * 1990-06-21 1991-12-27 Matsushita Electric Industrial Co., Ltd. Loudspeaker arrangement in television receiver cabinet
US5105905A (en) * 1990-05-07 1992-04-21 Rice Winston C Co-linear loudspeaker system
EP0519509A2 (en) * 1991-06-19 1992-12-23 Daewoo Electronics Co., Ltd Woofer module for use in a television set
EP0598391A2 (en) * 1992-11-18 1994-05-25 Matsushita Electric Industrial Co., Ltd. Speaker apparatus and television receiver using the same
EP0492919B1 (en) * 1990-12-22 1996-02-07 Sony Corporation Television receiver loudspeaker device
US5524062A (en) * 1993-07-26 1996-06-04 Daewoo Electronics Co., Ltd. Speaker system for a televison set

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Publication number Priority date Publication date Assignee Title
DE3700539A1 (de) * 1987-01-10 1988-07-28 Joachim Weckler Elektroakustischer apparat zur wiedergabe tiefster und mittlerer frequenzen
JPH01135295A (ja) * 1987-11-20 1989-05-26 Matsushita Electric Ind Co Ltd スピーカシステム
US4926487A (en) * 1988-03-16 1990-05-15 Sanyo Electric Co., Ltd. Speaker system
EP0390165A2 (en) * 1989-03-29 1990-10-03 SANYO ELECTRIC Co., Ltd. Speaker system
JPH0394598A (ja) * 1989-09-06 1991-04-19 Matsushita Electric Ind Co Ltd スピーカ装置、それを利用したテレビセット
US5105905A (en) * 1990-05-07 1992-04-21 Rice Winston C Co-linear loudspeaker system
EP0462571A1 (en) * 1990-06-21 1991-12-27 Matsushita Electric Industrial Co., Ltd. Loudspeaker arrangement in television receiver cabinet
US5604337A (en) * 1990-06-21 1997-02-18 Matsushita Electric Industrial Co., Ltd. Loudspeaker arrangement in television receiver cabinet
EP0492919B1 (en) * 1990-12-22 1996-02-07 Sony Corporation Television receiver loudspeaker device
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US5361380A (en) * 1991-06-19 1994-11-01 Daewoo Electronics Co., Ltd. Woofer module for use in a television set
EP0598391A2 (en) * 1992-11-18 1994-05-25 Matsushita Electric Industrial Co., Ltd. Speaker apparatus and television receiver using the same
US5524062A (en) * 1993-07-26 1996-06-04 Daewoo Electronics Co., Ltd. Speaker system for a televison set

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6035051A (en) * 1997-05-12 2000-03-07 Sony Corporation Sound apparatus
EP1041538A1 (en) * 1999-03-30 2000-10-04 THOMSON multimedia Mechanical filter for acoustic systems and television set equipped with sunch filters
FR2791802A1 (fr) * 1999-03-30 2000-10-06 Thomson Multimedia Sa Filtre mecanique pour systemes acoustiques et televiseur equipe de tels filtres
US20030127280A1 (en) * 2000-07-31 2003-07-10 Mark Engebretson System for integrating mid-range and high-frequency acoustic sources in multi-way loudspeakers
US7134523B2 (en) * 2000-07-31 2006-11-14 Harman International Industries, Incorporated System for integrating mid-range and high-frequency acoustic sources in multi-way loudspeakers
US20100032232A1 (en) * 2008-08-11 2010-02-11 Samsung Electronics Co., Ltd. Speaker device and display apparatus having the same
GB2476477A (en) * 2009-12-22 2011-06-29 Malcolm Hyde Loudspeaker uses movable panels to re-direct rearward sound waves
WO2011153998A1 (en) * 2010-06-07 2011-12-15 Libratone Aps Compact stereo loudspeaker for wall mounting
US20120133894A1 (en) * 2010-11-30 2012-05-31 Sanyo Electric Co., Ltd. Projection display apparatus
US9516257B2 (en) 2013-12-30 2016-12-06 Boe Technology Group Co., Ltd. Display device housing and display device
US10789811B2 (en) 2016-03-08 2020-09-29 Chill Gaming Pty Ltd Computing system providing a user-directed, avatar-based skill activity
US10796532B2 (en) 2016-03-08 2020-10-06 Chill Gaming Pty Ltd System executing a meta-game and a virtual environment
US10846991B2 (en) 2016-03-08 2020-11-24 Chill Gaming Pty Ltd System and method providing a virtual environment hosting a player avatar
US20180310095A1 (en) * 2017-04-19 2018-10-25 Chill Gaming Pty Ltd Audio system
US10536772B2 (en) * 2017-04-19 2020-01-14 Chill Gaming Pty Ltd Audio system
US20200021908A1 (en) * 2018-07-10 2020-01-16 Samsung Electronics Co., Ltd. Sound output apparatus
US10880637B2 (en) * 2018-07-10 2020-12-29 Samsung Electronics Co., Ltd. Sound output apparatus

Also Published As

Publication number Publication date
CN1054254C (zh) 2000-07-05
CN1125378A (zh) 1996-06-26
JP3449571B2 (ja) 2003-09-22
EP0700210A2 (en) 1996-03-06
DE700210T1 (de) 1996-08-29
KR960009689A (ko) 1996-03-22
DE69514055D1 (de) 2000-01-27
HK1014231A1 (en) 1999-09-24
KR100231094B1 (ko) 1999-11-15
EP0700210A3 (zh) 1996-03-27
JPH0879659A (ja) 1996-03-22
DE69514055T2 (de) 2000-06-08
TW428870U (en) 2001-04-01
EP0700210B1 (en) 1999-12-22

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